Aquarium ornament



FIG. 1 is a front elevational view of an aquarium ornament showing our new design, the rear being a mirror image of the front shown;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image of the side shown;

FIG. 3 is a top plan view thereof; and

FIG. 4 is a bottom plan view thereof. 

The ornamental design for an aquarium ornament, substantially as shown and described. 